markit
markit
11-01-2016
Mathematics
contestada
what multiplies to -4 and adds up to 7?
Respuesta :
Billymkhoi
Billymkhoi
11-01-2016
The two numbers are
(7+ sqrt(65))/2
and
(7- sqrt(65))/2
(7+ sqrt(65))/2+ (7- sqrt(65))/2= 7
(7+ sqrt(65))/2* (7- sqrt(65))/2)= -4.
Hope this helps~
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